Railway water-closet



J. A. CORRY. I

RAILWAY WATER CLOSET. APPLICATION mm m c-30, 191s.

Patented May-10,1921.

v lnven/or James fifCorry rear -orrica.

JAMES A. COREY, OF OTTAWA, ONTARIO, CANADA, ASSIGNOR TO THOMAS BIRKETT, I

- OF OTTAWA, ONTARIO, CANADA.

RAILWAY WATER-CLOSET.

Specification of Letters Patent. Patented May it}, 1921.

, Application filed December 30, 1918. Serial No. 268,844.

- To all whom it may concern:

I used while a railway car or the like is standing ill. the station, or a vessel is docked or passing through canals or other waters where 1t is-not permissible to: discharge raw sewage. At the. present time, it is necessary, in order to preserve the cleanliness of stations, harbors, canals, etc, to lock the toilet rooms v v on cars which are to stand 1n the station or I boats lying in harbors, and in large cities it is necessary tokeep the toiletrrooms locked for a considerable time after the train leaves the station, inorder to preserve the cleanliness of the tracks running through the city.

' In the caseof ordinary day trains, this concars and the like which frequently stand in Years is so very great that means permitting.

ditiondoes not present a very great hard ship-to the traveling public but, in the case of boats which receive passengers many hours before startin or through sleeping a station for several hours before proceeding on the succeeding stages of theirjour neys, and in the case of private cars which frequently'stand several days at a station, the inconvenience to the occupants of the the use of toilet facilities while cars are standing in stations has become an absolute public necessity;

The present invention-overcomes the foregoing COIldllilOIl by prov ding a reservoir below the hopper, the reservoir having) sure means at its outlet and a seal eing provided between the hopper and reservoir. In the drawings whic illustrate the invention:-

Figure 1 is 'a vertical sectional view of the devicetrolled b Fig.1,2 is a plan view of the device, the hopper being removed.

Fig. 3 is an enlarged section of the reservoir outlet.

Referring more particularly to the drawmgs, 11 designates the floor of a car and 12 a false floor thereabove, occupying onlythe area of the toilet room or such part thereof as is necessary. In the space 13 between the floors, a closed reservoir 14: is provided.

This reservoir is preferably of inverted conical form and quite shallow, asshown in F 1,- so as to occupy a minimum of space" 1n the vertical direction. The reservoir comprises an inverted conical or frustocomcal pan 15 connected at its apex or outlet 16 in any suitable manner such as by v soldering witha mouth ring 17. The pan is provided-with a-flat top 18 hermetically sealedthereon and lying immediately under the false floor 12. The top of the reservoir is provided with a central opening 19 into which the foot 20 of the ho per 21 projects. This hopper is secured to t e false floor 12 by, bolts 22, which pass through the top of the reservoir around the opening '19 and through aring'23, so as to compress a gasket '24 between the ring and the top of the reservoir and between the ring and the foot 20 of the hopper. The gasket provides a hermetic seal between the hopper and the reservoir and "prevents theescape of odorsat the junction into the. toilet room or into the space 13. A pipe 25 carrying flushing water lies around the inside of the reservoir at the junction of the pan and top and is supplied from the water tanks of the car through a pipe 26. A ventilating pipe 27 is also provided leadingfrom the top of the reservoir. The outlet of the reservoir isconany suitable means, such as a very slig tly tapered gate valve 28 sliding in the. ring 17 and in the guides 29 extend-. ing therefrom. This gate is connected by a link 30 with a lever. 31 which may be locked at any desired point on a. quadrant .32 to prevent unauthorized manipulation of the gate valve 28. The mouth ring 17 rests. on

the jacket 33 of the waste pipe 34 and serves to hold the waste pipe in place. Steam may "100..

be admitted through a pipe 35 intojthe space 86 between the waste pipe and jacket in order to prevent freezing of the waste pipe in winter. It should be noted here that, as clearly shown in the drawing the jacket 33 is in contact with the valve casing and mouth ring of the reservoir and entirely surrounds the mouth of the overflow.

' Obviously the reservoir, mouth ring, valve and overflow'will be heated by the introduction of steaminto the said jacket and this is an importantfeature 'of the invention as it is essential to the operation of the apparatus under all conditions. a

In order to isolate the hopper from the reservoir it is necessary to provide some form of trap. The S traps ordinarily used in domestic plumbing require a much greater flow of flushing water than can besuitable point on its periphery, as indicated at 39. This pan forms inpractice a bottom for the hopper and is so/propor tioned that its edge is above the lower edge of the flange, in order that when the pan 1s filled or nearly filled with water, the lower edge of the flange 37 will be submer ed and a water seal will be efiected'. T e pan normally occupies the horizontal position shown, but may be tipped to empty the hopper by means of any suitable operating mechanism 40, which also controls a flushing valve 41' in the water sup ly line 42 of the hopper. This flushing va ve may be of any suitable type which will prolong the flow of water until the pan'is returned to normal position, so, that the pan'will be filled with water and the desired seal effected. In

order. to prevent an overfilled reservoir blocking the pan 38 in openposition, so that odors would escape into the car, an overflow pipe 43 is provided leading from near the top of the reservoir to a passage 44 formed in the jacket casting 33 and leading into the waste pipe.

The reservoir being circular and the outlet valve bein located at its center, it is obvious that in installing the device, the.

valve handle may be located in any suitable part of the room by merely turning thereservoir as desired. The hopper ma then be set on in any desired position. hile one particular form of hopper has been shown, it is obvious that other types may be used where conditions permit, such as the ordinary domestic hopper with S-trap where the water supply and size of reservoir are not limited.

The operation of 'the device is extremely simple and entails no more work on the train crew than the present method of locking and unlocking the toilet rooms. When a car comes into a station where it is to remain for some time, the gate valve at the bottom of the reservoir is closed and locked to prevent unauthorized opening. The toilet facilities of the car are then used in the ordinary manner. When the lever 40 is operated, it tipsthe pan forming the hopper bottom so'that there is a straight fall'from the hopperinto the reservoir. At

=the same time the flushing valve 41 is operated and a flow of water rinses the hopper and pan, this flow of water being maintained a suflicient length of time after the pan returns to normal position for the pan to be filled and a water seal formed. Owing to the straight drop from the bottom of the hopper, a very small amount of water will sufiice to rinse the same, so that a comparatively small reservoir will serve to contain the water of many flushings. When the car moves out onthe line, a trainman unlocks the lever 31 and opens the valve 28 and .then flushes out the reservoir by admitting water through the pipe 26. When the train is running, the valve 28 will-preferably be locked in open position to' prevent unauthorized closing. It will be noted that the hop;

per is directly above the waste pipe 34 and is of smaller diameter, so that there will be a straight drop from the hopper to the waste pipe, which will prevent the reservoir filling up. 'The provision of a slight taper 'in the valve 28 or other suitable means will prevent leakage from the reservoir into the space Band, at the same time, the hermetically sealed construction of the reservoir will prevent the escape of odors into this space. Havingthus described my invention, what I claim is 1. In a device of the class described, an inverted frus'to-conical reservoir, a discharge pipe, a heating jacket for said discharge pipe, a mouth ring for the reservoir secured 'to said jacket and holding the discharge plpQlIl place.

2. A device according to claim'l, in which the reservoir projects into the mouth ring and the mouth rlng projects into the dischar e pipe.

3. n combination with a device according to claim 1, a plate slidable in the mouth ring forming a gate valve controlling communlcation between the reservoir and discharge 1 e. p In combination with a device according to claim 1, a passage formed through the jacket and leading into the discharge pipe below the ring, and a conduit between 1377,19; p 3 a said passage and the upper part, of the ing to admit water to the valve to form-a reservoir; seal between the hopper and reservoir, a 10 5. In a. device .of the class described, a v valve controlling discharge from thereserreservoir, a hopper discharging into the voir, and a commonwarming means for reservoir, an over-flow pipe for the reserreservoir, valve and over-flow pipe.

voir, a cu ilvalve controlling communication In witness whereof, I have hereunto set between t 'e hopper and reservoir, operatmy hand.

ing means for said valve adapted on clos- JAMES A. CORRY. I 

